From: Guus Sliepen <guus@tinc-vpn.org>
Date: Sat, 19 May 2007 12:07:30 +0000 (+0000)
Subject: We can safely delete a connection_t in terminate_connection() now.
X-Git-Tag: release-1.1pre1~167
X-Git-Url: https://tinc-vpn.org/git/browse?p=tinc;a=commitdiff_plain;h=ce976717ea9756aa985699547fdbf132b694748d

We can safely delete a connection_t in terminate_connection() now.
---

diff --git a/src/connection.h b/src/connection.h
index 9906f0d7..6537e519 100644
--- a/src/connection.h
+++ b/src/connection.h
@@ -40,7 +40,7 @@ typedef union connection_status_t {
 		int active:1;				/* 1 if active.. */
 		int connecting:1;			/* 1 if we are waiting for a non-blocking connect() to finish */
 		int termreq:1;				/* the termination of this connection was requested */
-		int remove:1;				/* Set to 1 if you want this connection removed */
+		int remove_unused:1;				/* Set to 1 if you want this connection removed */
 		int timeout:1;				/* 1 if gotten timeout */
 		int encryptout:1;			/* 1 if we can encrypt outgoing traffic */
 		int decryptin:1;			/* 1 if we have to decrypt incoming traffic */
diff --git a/src/net.c b/src/net.c
index 469f10fc..d78770e1 100644
--- a/src/net.c
+++ b/src/net.c
@@ -100,31 +100,6 @@ static void purge(void) {
 	}
 }
 
-/*
-  put all file descriptors into events
-  While we're at it, purge stuf that needs to be removed.
-*/
-static int build_fdset(void) {
-	splay_node_t *node, *next;
-	connection_t *c;
-	int i, max = 0;
-
-	cp();
-
-	for(node = connection_tree->head; node; node = next) {
-		next = node->next;
-		c = node->data;
-
-		if(c->status.remove) {
-			connection_del(c);
-			if(!connection_tree->head)
-				purge();
-		}
-	}
-
-	return 0;
-}
-
 /*
   Terminate a connection:
   - Close the socket
@@ -135,13 +110,9 @@ static int build_fdset(void) {
 void terminate_connection(connection_t *c, bool report) {
 	cp();
 
-	if(c->status.remove)
-		return;
-
 	ifdebug(CONNECTIONS) logger(LOG_NOTICE, _("Closing connection with %s (%s)"),
 			   c->name, c->hostname);
 
-	c->status.remove = true;
 	c->status.active = false;
 
 	if(c->node)
@@ -175,18 +146,20 @@ void terminate_connection(connection_t *c, bool report) {
 		}
 	}
 
+	free(c->outbuf);
+	c->outbuf = NULL;
+	c->outbuflen = 0;
+	c->outbufsize = 0;
+	c->outbufstart = 0;
+
 	/* Check if this was our outgoing connection */
 
 	if(c->outgoing) {
 		retry_outgoing(c->outgoing);
 		c->outgoing = NULL;
+	} else {
+		connection_del(c);
 	}
-
-	free(c->outbuf);
-	c->outbuf = NULL;
-	c->outbuflen = 0;
-	c->outbufsize = 0;
-	c->outbufstart = 0;
 }
 
 /*
@@ -215,16 +188,11 @@ static void timeout_handler(int fd, short events, void *event) {
 							   c->name, c->hostname, now - c->last_ping_time);
 					c->status.timeout = true;
 					terminate_connection(c, true);
+					continue;
 				} else if(c->last_ping_time + pinginterval < now) {
 					send_ping(c);
 				}
 			} else {
-				if(c->status.remove) {
-					logger(LOG_WARNING, _("Old connection_t for %s (%s) status %04x still lingering, deleting..."),
-						   c->name, c->hostname, c->status.value);
-					connection_del(c);
-					continue;
-				}
 				ifdebug(CONNECTIONS) logger(LOG_WARNING, _("Timeout from %s (%s) during authentication"),
 						   c->name, c->hostname);
 				if(c->status.connecting) {
@@ -233,6 +201,7 @@ static void timeout_handler(int fd, short events, void *event) {
 					do_outgoing_connection(c);
 				} else {
 					terminate_connection(c, false);
+					continue;
 				}
 			}
 		}
@@ -246,9 +215,6 @@ void handle_meta_connection_data(int fd, short events, void *data) {
 	int result;
 	socklen_t len = sizeof(result);
 
-	if (c->status.remove)
-		return;
-
 	if(c->status.connecting) {
 		getsockopt(c->socket, SOL_SOCKET, SO_ERROR, &result, &len);
 
@@ -383,8 +349,6 @@ static void sigalrm_handler(int signal, short events, void *data) {
   this is where it all happens...
 */
 int main_loop(void) {
-	struct timeval tv;
-	int r;
 	struct event timeout_event;
 	struct event sighup_event;
 	struct event sigint_event;
diff --git a/src/net_socket.c b/src/net_socket.c
index ec774f6a..3fea33e1 100644
--- a/src/net_socket.c
+++ b/src/net_socket.c
@@ -274,7 +274,6 @@ begin:
 		if(!c->outgoing->cfg) {
 			ifdebug(CONNECTIONS) logger(LOG_ERR, _("Could not set up a meta connection to %s"),
 					   c->name);
-			c->status.remove = true;
 			retry_outgoing(c->outgoing);
 			return;
 		}
diff --git a/src/process.c b/src/process.c
index dcc6cb33..1b5f00db 100644
--- a/src/process.c
+++ b/src/process.c
@@ -45,8 +45,6 @@ extern bool use_logfile;
 
 sigset_t emptysigset;
 
-static int saved_debug_level = -1;
-
 static void memory_full(int size) {
 	logger(LOG_ERR, _("Memory exhausted (couldn't allocate %d bytes), exitting."), size);
 	cp_trace();
diff --git a/src/protocol_misc.c b/src/protocol_misc.c
index ca1dc315..1e0bc50d 100644
--- a/src/protocol_misc.c
+++ b/src/protocol_misc.c
@@ -90,9 +90,7 @@ bool error_h(connection_t *c)
 	ifdebug(ERROR) logger(LOG_NOTICE, _("Error message from %s (%s): %d: %s"),
 			   c->name, c->hostname, err, errorstring);
 
-	terminate_connection(c, c->status.active);
-
-	return true;
+	return false;
 }
 
 bool send_termreq(connection_t *c)
@@ -106,9 +104,7 @@ bool termreq_h(connection_t *c)
 {
 	cp();
 
-	terminate_connection(c, c->status.active);
-
-	return true;
+	return false;
 }
 
 bool send_ping(connection_t *c)
diff --git a/src/tincd.c b/src/tincd.c
index bde1b9bc..9730e211 100644
--- a/src/tincd.c
+++ b/src/tincd.c
@@ -466,7 +466,7 @@ int main(int argc, char **argv)
 	if(!read_server_config())
 		return 1;
 
-	if(event_init() < 0) {
+	if(!event_init()) {
 		logger(LOG_ERR, _("Error initializing libevent!"));
 		return 1;
 	}